Hand-stamp



J. H. GRESSITT 85H. W. FOX.

' HAND STAMP.

No. 551,928. Patented Dec. 24, 189.5.

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ATTORNEY I I PHDTO-LI'TMQWASHINGTON DC UNITED STATES PATENT OFFICE.

JAMES HENRY GRESSITT AND HENRY IV. FOX, OF BALTIMORE, MARYLAND, ASSIGNORS TO THE THOMPSON MANUFACTURING COMPANY OF BALTI- MORE CITY, OF MARYLAND.

HAN D-STAIVI P.

SPECIFICATION forming part of Letters Patent No. 551,928, dated December 24, 1895.

Application filed April 8, 1895. Serial No. 544,920. (No model.)

To all whom it may concern: edges 07,, substantially at right angles with re- Be it known that we, JAMES HENRY GRES- spect to each other, and the notch w is in the SITT and HENRY W. FOX, citizens of the corner adjoining the said two edges. Oppo- United States, residing at Baltimore, in the site this notch the tumble-plate has a curved State ofMaryla-nd, have invented certainnew' edge 0, which extends from one edge n to and useful Improvements in Hand-Stamps, the other. This plate has acenter hole m for of which the following is a specification. the shaft m, and a seriesof small holes 19 Our invention relates to improvements in around or concentric with said shaft-hole. hand-stamps of that class which employ an On the end of the shaft m is a knob q, fixed 1o oscillatory impression-block. rigidly, whereby on grasping the knob the I The invention will first be described, and impression-block B may be turned. This then designated in the claims. knob has a short pin p which will fit in either In the acoompanyingdrawings, Figure 1 one of the series of concentric holes 19 on the is a side elevation of the stamp. Fig. 2 is a tumble-plate.

I 5 top view of same, except that the depressing The block B has a plural number of impresknob is omitted. Fig. 3 is a detail showing sion-faces T, whereon a type-plate of rubber the construction of ink-roller bearing. Fig. may be secured. In the present instance this 4. is a section of the oscillatory block and atblock has siX faces and therefore provides tached parts. Fig. 5 is aview of the tumblefor carrying six different type-plates or im- 20 plate. Fig. 6 is a view of the knob carried pression-plates' The number of concentric on the shaft of the oscillatory block. holes pin the tumble-plate should correspond The letter A designates two vertical side with the number of impression or type faces plates secured together by cross-rods d. A on the oscillatory block, which, as stated, is frame or yoke O has one end 0 pivoted at E in the present instance six. From this de- 25 between the two side plates, and a torsional scription it will be seen that the knob (1 may spring 6 wound around the pivot-rod E serves be grasped and pulled so as to compress the to elevate the free end of the said frame or spiral spring j and thereby slide the block B yoke. The two side plates A have curved and shaft m endwise and release the pin 19 front ends f, the said curves forming part of from the hole 19 it maybe in, and thus allow 30 a circle which is concentric with the pivot E. the block B to be turned so as to present a The curved end ofone plate has a lug a, different impression-face for use. Then the which coacts with a notch w on a tumblesaid pin 19 may be set into another hole 19, so plate H, and causes the impression-block B as to retain the desired impression-face in the to oscillate or partly turn. The free end of proper relation for printing.-

35 the pivoted frame 0 has two yoke-arms b and It is desirable to prevent the tumble-plate 8 5 the oscillatory impression-block B, has posi- H from being drawn away from the yoke-arm tion between these arms and is carried there- I) when the knob qis pulled, as just described. by. A shaft m passes through this block to In other words, when the knob q is pulled it which it is rigidly fixed, and the shaft ends is desirable that the shaftm shall draw freely 40 are free to turn in said two yoke-arms Z). through both the yoke-armband the tumble- The oscillatory block has at one end a recess plate H, for the reason that only by the tum- 2', and a spiral spring j is around the shaft ble-plate remaining stationary can the pin p and occupies the recess. One end of the spiral on the knob be released or detached from the spring bears against the inner side of one of hole 19 in the tumble-plate. To insure that 45 the yoke-arms 6. Thus this spring serves to this pin will withdraw from the hole it is in,

push the shaftm and the oscillatory block B we provide as follows for keeping the plate H endwise and keep them normally pressed over stationary when drawing the knob The yoketoward the yoke-arm on the other side. arm I) has a groove or slot 4" and the tumble- The tumble-plate H, heretofore mentioned, plate H has a lateral hook s, which takes in 50 is loose on the shaft m. This plate has two said groove or slot. Thus the plate is coupled roo Iii or fastened to the yoke-arm without interfering with its freedom of tumbling.

The side plates A at their highest part and front end have a forwardly-projecting downcurved arm at, provided with a rounded extremity it, having a bearing 4) for the journal 0 of an ink-roller G. The rounded extremity of each arm to is larger than the ink-roller and has a radial slot or hole 50, and a spiral spring 3 is in this slot or hole and bears against the journal 1;. Apart-cylindric case 2 fits on the rounded extremity u and covers or inclos'es the ink-roller and also the radial hole at, and confines the spiral spring y therein. A screw z secures the case 2 on said rounded extremity. Byhaving the down-curved arms a to support the inking-roller, the curved edge 0 of the tumble-plate H may take up under said curve, as in Fig. 1, and the said arms are not in the way of the knob q. By having the radial slot and spring y, the ink-roller is kept pressed toward the oscillatory block B, and yet said ink-roller may yield or be pushed away by the block B when it passes the roller. By having the rounded extremity a larger than the ink-roller G, the partlycylindric case .2 may be fastened on said extremity and cover the ink-roller, and yet leave it free to turn on its journals 1;.

A depressing-knob O has a shank G which is secured on the pivoted frame. By pressing down on this knob C an impression may be made by one of the type-faces T on the oscillatory block 13.

In operation the impressionblock B makes at least a quarter turn and back again every time the frame C is depressed, and this is the reason we term it an oscillatory block.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a hand stamp, the combination of a pivoted frame having yoke-arms; plate ends having alug, a; a shaft revoluble in said yokearms and having slight endwise movement and carrying an impression block; a tumble plate loose on the shaft and having a notch, w, to coact with said lug and a series of holes concentric with the shaft; a knob on the end of the shaft and provided with a pin, 23, to engage one of the holes in the tumble-plate; and means for holding the said loose tumble plate stationary when drawing the shaft endwise so that the shaft may be drawn freely through it in order to detach the knob-pin from one of the holes in the plate, substantially as described.

2. In a hand stamp, the combination of the yoke-arms one of which has a groove, 1'; plate ends having a lug, a; a shaft revoluble in said yoke-arms and having slight endwise movement and carrying an impression block; a tumble plate loose on the shaft and having a notch, w, and a series of holes concentric with the shaft and provided with a lateral hook which engages the groove on the yokearm; and a knob on the end of the shaft and provided with a pin, 19, to engage one of the holes on the tumble plate.

3. In ahand stamp, the combination of the side plates, A, provided at their highest part with projecting down-curved arms each having a rounded extremity, u, a bearing, '0, and a radial hole, 00; an inking roller, G, whose journals are in said bearings; a spiral spring, in each radial hole and pressing against the journals; a part cylindric case, z, fitted on the said rounded extremities and confining the springs and covering the ink-roller; a pivoted yoke frame; and an oscillatory impression block carried by said yoke-frame.

In testimony whereof we affix our signatures in the presence of two witnesses.

JAMES HENRY GRESSITT. HENRY W. FOX. \Vitnesses:

CHARLES B. MANN, J R., O. CALVERT HINEs. 

